Megan Fox is known for talking about anything and everything in interviews. In the new issue of Rolling Stone, Fox once again opened up about everything from her past self-destructive habits to her on-again, off-again relationship with "90210" alum Brian Austin Green.

The magazine even asked the actress if she ever cut herself when she was younger. "Yeah," she admitted. "But I don't want to elaborate. I would never call myself a cutter. Girls go through different phases when they're growing up, when they're miserable, and do different things, whether it's an eating disorder or they dabble in cutting."

Fox wouldn't comment, however, on whether she ever had an eating disorder. She thinks talking about that might give her "role-model status," something she doesn't want. "I'd have to choose my words very carefully," she explained. "And I'd have to make sure I reveal it in a specific way, and I don't want to do it."

While Fox has a reputation as a confident sex symbol, she said she's actually very vulnerable. "I'm really insecure about everything," she said. "I never think I'm worthy of anything. ... I have a sick feeling of being mocked all the time. I have a lot of self-loathing.

"Self-loathing doesn't keep me from being happy," she continued. "But that doesn't mean I don't struggle. I am very vulnerable. But I can be aggressive, hurtful, domineering and selfish too. I'm emotionally unpredictable and all over the place. I'm a control freak."

The "Jennifer's Body" star said she's warned boyfriend Green about her bad temper. It's so bad, she said, that she wouldn't ever own a gun. "I've had to say to Brian, 'You have to go and stop talking to me, because I'm going to kill you. I'm going to stab you with something. Please leave,' " Fox said. "I'd never own a gun for that reason. I wouldn't shoot to kill. But I would shoot him in the leg, for sure."